Changeset 561 for trunk/src/svg/qsvggraphics.cpp

Timestamp:

Feb 11, 2010, 11:19:06 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.1 sources.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/svg/qsvggraphics.cpp (modified) (24 diffs)

trunk/src/svg/qsvggraphics.cpp

@@ -2 +2 @@
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Qt Software Information (qt-info@nokia.com)
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the QtSvg module of the Qt Toolkit.
@@ -21 +22 @@
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
-** In addition, as a special exception, Nokia gives you certain
-** additional rights. These rights are described in the Nokia Qt LGPL
-** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
-** package.
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
@@ -34 +34 @@
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at qt-sales@nokia.com.
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
 ** $QT_END_LICENSE$
 **
@@ -57 +57 @@
 QT_BEGIN_NAMESPACE
 
-#define QT_SVG_DRAW_SHAPE(command)                  \
-    applyStyle(p, states);                          \
-    qreal oldOpacity = p->opacity();                \
-    QBrush oldBrush = p->brush();                   \
-    QPen oldPen = p->pen();                         \
-    p->setPen(Qt::NoPen);                           \
-    p->setOpacity(oldOpacity * states.fillOpacity); \
-    command;                                        \
-    p->setOpacity(oldOpacity);                      \
-    p->setPen(oldPen);                              \
-    p->setBrush(Qt::NoBrush);                       \
-    command;                                        \
-    p->setBrush(oldBrush);                          \
-    revertStyle(p, states);
+#define QT_SVG_DRAW_SHAPE(command)                          \
+    qreal oldOpacity = p->opacity();                        \
+    QBrush oldBrush = p->brush();                           \
+    QPen oldPen = p->pen();                                 \
+    p->setPen(Qt::NoPen);                                   \
+    p->setOpacity(oldOpacity * states.fillOpacity);         \
+    command;                                                \
+    p->setPen(oldPen);                                      \
+    if (oldPen.widthF() != 0) {                             \
+        p->setOpacity(oldOpacity * states.strokeOpacity);   \
+        p->setBrush(Qt::NoBrush);                           \
+        command;                                            \
+        p->setBrush(oldBrush);                              \
+    }                                                       \
+    p->setOpacity(oldOpacity);
 
 
@@ -95 +96 @@
 {
     qreal sw = strokeWidth();
-    if (qFuzzyCompare(sw + 1, 1))
+    if (qFuzzyIsNull(sw))
         return m_bounds;
     else {
@@ -106 +107 @@
 void QSvgCircle::draw(QPainter *p, QSvgExtraStates &states)
 {
+    applyStyle(p, states);
     QT_SVG_DRAW_SHAPE(p->drawEllipse(m_bounds));
+    revertStyle(p, states);
 }
 
@@ -118 +121 @@
 {
     applyStyle(p, states);
-    p->drawPath(cubic);
+    if (p->pen().widthF() != 0) {
+        qreal oldOpacity = p->opacity();
+        p->setOpacity(oldOpacity * states.strokeOpacity);
+        p->drawPath(cubic);
+        p->setOpacity(oldOpacity);
+    }
     revertStyle(p, states);
 }
@@ -130 +138 @@
 {
     qreal sw = strokeWidth();
-    if (qFuzzyCompare(sw + 1, 1))
+    if (qFuzzyIsNull(sw))
         return m_bounds;
     else {
@@ -141 +149 @@
 void QSvgEllipse::draw(QPainter *p, QSvgExtraStates &states)
 {
+    applyStyle(p, states);
     QT_SVG_DRAW_SHAPE(p->drawEllipse(m_bounds));
+    revertStyle(p, states);
 }
 
@@ -172 +182 @@
 {
     applyStyle(p, states);
-    p->drawLine(m_bounds);
+    if (p->pen().widthF() != 0) {
+        qreal oldOpacity = p->opacity();
+        p->setOpacity(oldOpacity * states.strokeOpacity);
+        p->drawLine(m_bounds);
+        p->setOpacity(oldOpacity);
+    }
     revertStyle(p, states);
 }
@@ -179 +194 @@
     : QSvgNode(parent), m_path(qpath)
 {
-    //m_cachedBounds = m_path.controlPointRect();
-    m_cachedBounds = m_path.boundingRect();
 }
 
 void QSvgPath::draw(QPainter *p, QSvgExtraStates &states)
 {
+    applyStyle(p, states);
+    m_path.setFillRule(states.fillRule);
     QT_SVG_DRAW_SHAPE(p->drawPath(m_path));
+    revertStyle(p, states);
 }
 
@@ -191 +207 @@
 {
     qreal sw = strokeWidth();
-    if (qFuzzyCompare(sw + 1, 1))
+    if (qFuzzyIsNull(sw)) {
+        if (m_cachedBounds.isNull())
+            //m_cachedBounds = m_path.controlPointRect();
+            m_cachedBounds = m_path.boundingRect();
+
         return m_cachedBounds;
+    }
     else {
         return boundsOnStroke(m_path, sw);
@@ -201 +222 @@
     : QSvgNode(parent), m_poly(poly)
 {
-
 }
 
@@ -207 +227 @@
 {
     qreal sw = strokeWidth();
-    if (qFuzzyCompare(sw + 1, 1))
+    if (qFuzzyIsNull(sw))
         return m_poly.boundingRect();
     else {
@@ -218 +238 @@
 void QSvgPolygon::draw(QPainter *p, QSvgExtraStates &states)
 {
-    QT_SVG_DRAW_SHAPE(p->drawPolygon(m_poly));
+    applyStyle(p, states);
+    QT_SVG_DRAW_SHAPE(p->drawPolygon(m_poly, states.fillRule));
+    revertStyle(p, states);
 }
 
@@ -231 +253 @@
 {
     applyStyle(p, states);
+    qreal oldOpacity = p->opacity();
     if (p->brush().style() != Qt::NoBrush) {
         QPen save = p->pen();
         p->setPen(QPen(Qt::NoPen));
-        p->drawPolygon(m_poly);
+        p->setOpacity(oldOpacity * states.fillOpacity);
+        p->drawPolygon(m_poly, states.fillRule);
         p->setPen(save);
     }
-    p->drawPolyline(m_poly);
+    if (p->pen().widthF() != 0) {
+        p->setOpacity(oldOpacity * states.strokeOpacity);
+        p->drawPolyline(m_poly);
+    }
+    p->setOpacity(oldOpacity);
     revertStyle(p, states);
 }
@@ -250 +278 @@
 {
     qreal sw = strokeWidth();
-    if (qFuzzyCompare(sw + 1, 1))
+    if (qFuzzyIsNull(sw))
         return m_rect;
     else {
@@ -261 +289 @@
 void QSvgRect::draw(QPainter *p, QSvgExtraStates &states)
 {
+    applyStyle(p, states);
     if (m_rx || m_ry) {
         QT_SVG_DRAW_SHAPE(p->drawRoundedRect(m_rect, m_rx, m_ry, Qt::RelativeSize));
@@ -266 +295 @@
         QT_SVG_DRAW_SHAPE(p->drawRect(m_rect));
     }
-}
+    revertStyle(p, states);
+}
+
+QSvgTspan * const QSvgText::LINEBREAK = 0;
 
 QSvgText::QSvgText(QSvgNode *parent, const QPointF &coord)
     : QSvgNode(parent)
     , m_coord(coord)
-    , m_textAlignment(Qt::AlignLeft)
-    , m_scale(1)
-    , m_appendSpace(false)
     , m_type(TEXT)
     , m_size(0, 0)
-{
-    m_paragraphs.push_back(QString());
-    m_formatRanges.push_back(QList<QTextLayout::FormatRange>());
+    , m_mode(Default)
+{
 }
 
 QSvgText::~QSvgText()
 {
+    for (int i = 0; i < m_tspans.size(); ++i) {
+        if (m_tspans[i] != LINEBREAK)
+            delete m_tspans[i];
+    }
 }
 
@@ -296 +328 @@
 {
     applyStyle(p, states);
-
-    QSvgFontStyle *fontStyle = static_cast<QSvgFontStyle*>(
-        styleProperty(QSvgStyleProperty::FONT));
-    if (fontStyle && fontStyle->svgFont()) {
-        // SVG fonts not fully supported...
-        QString text = m_paragraphs.front();
-        for (int i = 1; i < m_paragraphs.size(); ++i) {
-            text.append(QLatin1Char('\n'));
-            text.append(m_paragraphs[i]);
-        }
-        fontStyle->svgFont()->draw(p, m_coord, text, fontStyle->pointSize(), m_textAlignment);
-        revertStyle(p, states);
-        return;
-    }
-
-    // Scale the font to its correct size.
+    qreal oldOpacity = p->opacity();
+    p->setOpacity(oldOpacity * states.fillOpacity);
+
+    // Force the font to have a size of 100 pixels to avoid truncation problems
+    // when the font is very small.
+    qreal scale = 100.0 / p->font().pointSizeF();
+    Qt::Alignment alignment = states.textAnchor;
+
     QTransform oldTransform = p->worldTransform();
-    p->scale(1 / m_scale, 1 / m_scale);
+    p->scale(1 / scale, 1 / scale);
 
     qreal y = 0;
     bool initial = true;
-    qreal px = m_coord.x() * m_scale;
-    qreal py = m_coord.y() * m_scale;
-    QSizeF scaledSize = m_size * m_scale;
+    qreal px = m_coord.x() * scale;
+    qreal py = m_coord.y() * scale;
+    QSizeF scaledSize = m_size * scale;
 
     if (m_type == TEXTAREA) {
-        if (m_textAlignment == Qt::AlignHCenter)
+        if (alignment == Qt::AlignHCenter)
             px += scaledSize.width() / 2;
-        else if (m_textAlignment == Qt::AlignRight)
+        else if (alignment == Qt::AlignRight)
             px += scaledSize.width();
     }
@@ -330 +354 @@
     QRectF bounds;
     if (m_size.height() != 0)
-        bounds = QRectF(0, 0, 1, scaledSize.height());
-
-    for (int i = 0; i < m_paragraphs.size(); ++i) {
-        QTextLayout tl(m_paragraphs[i]);
-        QTextOption op = tl.textOption();
-        op.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
-        tl.setTextOption(op);
-        tl.setAdditionalFormats(m_formatRanges[i]);
-        tl.beginLayout();
-        forever {
-            QTextLine line = tl.createLine();
-            if (!line.isValid())
+        bounds = QRectF(0, py, 1, scaledSize.height()); // x and width are not used.
+
+    bool appendSpace = false;
+    QVector<QString> paragraphs;
+    QStack<QTextCharFormat> formats;
+    QVector<QList<QTextLayout::FormatRange> > formatRanges;
+    paragraphs.push_back(QString());
+    formatRanges.push_back(QList<QTextLayout::FormatRange>());
+
+    for (int i = 0; i < m_tspans.size(); ++i) {
+        if (m_tspans[i] == LINEBREAK) {
+            if (m_type == TEXTAREA) {
+                if (paragraphs.back().isEmpty()) {
+                    QFont font = p->font();
+                    font.setPixelSize(font.pointSizeF() * scale);
+
+                    QTextLayout::FormatRange range;
+                    range.start = 0;
+                    range.length = 1;
+                    range.format.setFont(font);
+                    formatRanges.back().append(range);
+
+                    paragraphs.back().append(QLatin1Char(' '));;
+                }
+                appendSpace = false;
+                paragraphs.push_back(QString());
+                formatRanges.push_back(QList<QTextLayout::FormatRange>());
+            }
+        } else {
+            WhitespaceMode mode = m_tspans[i]->whitespaceMode();
+            m_tspans[i]->applyStyle(p, states);
+
+            QFont font = p->font();
+            font.setPixelSize(font.pointSizeF() * scale);
+
+            QString newText(m_tspans[i]->text());
+            newText.replace(QLatin1Char('\t'), QLatin1Char(' '));
+            newText.replace(QLatin1Char('\n'), QLatin1Char(' '));
+
+            bool prependSpace = !appendSpace && !m_tspans[i]->isTspan() && (mode == Default) && !paragraphs.back().isEmpty() && newText.startsWith(QLatin1Char(' '));
+            if (appendSpace || prependSpace)
+                paragraphs.back().append(QLatin1Char(' '));
+
+            bool appendSpaceNext = (!m_tspans[i]->isTspan() && (mode == Default) && newText.endsWith(QLatin1Char(' ')));
+
+            if (mode == Default) {
+                newText = newText.simplified();
+                if (newText.isEmpty())
+                    appendSpaceNext = false;
+            }
+
+            QTextLayout::FormatRange range;
+            range.start = paragraphs.back().length();
+            range.length = newText.length();
+            range.format.setFont(font);
+            range.format.setTextOutline(p->pen());
+            range.format.setForeground(p->brush());
+
+            if (appendSpace) {
+                Q_ASSERT(!formatRanges.back().isEmpty());
+                ++formatRanges.back().back().length;
+            } else if (prependSpace) {
+                --range.start;
+                ++range.length;
+            }
+            formatRanges.back().append(range);
+
+            appendSpace = appendSpaceNext;
+            paragraphs.back() += newText;
+
+            m_tspans[i]->revertStyle(p, states);
+        }
+    }
+
+    if (states.svgFont) {
+        // SVG fonts not fully supported...
+        QString text = paragraphs.front();
+        for (int i = 1; i < paragraphs.size(); ++i) {
+            text.append(QLatin1Char('\n'));
+            text.append(paragraphs[i]);
+        }
+        states.svgFont->draw(p, m_coord * scale, text, p->font().pointSizeF() * scale, states.textAnchor);
+    } else {
+        for (int i = 0; i < paragraphs.size(); ++i) {
+            QTextLayout tl(paragraphs[i]);
+            QTextOption op = tl.textOption();
+            op.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
+            tl.setTextOption(op);
+            tl.setAdditionalFormats(formatRanges[i]);
+            tl.beginLayout();
+
+            forever {
+                QTextLine line = tl.createLine();
+                if (!line.isValid())
+                    break;
+                if (m_size.width() != 0)
+                    line.setLineWidth(scaledSize.width());
+            }
+            tl.endLayout();
+
+            bool endOfBoundsReached = false;
+            for (int i = 0; i < tl.lineCount(); ++i) {
+                QTextLine line = tl.lineAt(i);
+
+                qreal x = 0;
+                if (alignment == Qt::AlignHCenter)
+                    x -= 0.5 * line.naturalTextWidth();
+                else if (alignment == Qt::AlignRight)
+                    x -= line.naturalTextWidth();
+
+                if (initial && m_type == TEXT)
+                    y -= line.ascent();
+                initial = false;
+
+                line.setPosition(QPointF(x, y));
+
+                // Check if the current line fits into the bounding rectangle.
+                if ((m_size.width() != 0 && line.naturalTextWidth() > scaledSize.width())
+                    || (m_size.height() != 0 && y + line.height() > scaledSize.height())) {
+                    // I need to set the bounds height to 'y-epsilon' to avoid drawing the current
+                    // line. Since the font is scaled to 100 units, 1 should be a safe epsilon.
+                    bounds.setHeight(y - 1);
+                    endOfBoundsReached = true;
+                    break;
+                }
+
+                y += 1.1 * line.height();
+            }
+            tl.draw(p, QPointF(px, py), QVector<QTextLayout::FormatRange>(), bounds);
+
+            if (endOfBoundsReached)
                 break;
-
-            if (m_size.width() != 0)
-                line.setLineWidth(scaledSize.width());
         }
-        tl.endLayout();
-
-        bool endOfBoundsReached = false;
-        for (int i = 0; i < tl.lineCount(); ++i) {
-            QTextLine line = tl.lineAt(i);
-
-            qreal x = 0;
-            if (m_textAlignment == Qt::AlignHCenter)
-                x -= line.naturalTextWidth() / 2;
-            else if (m_textAlignment == Qt::AlignRight)
-                x -= line.naturalTextWidth();
-
-            if (initial && m_type == TEXT)
-                y -= line.ascent();
-            initial = false;
-
-            line.setPosition(QPointF(x, y));
-            if ((m_size.width() != 0 && line.naturalTextWidth() > scaledSize.width())
-                || (m_size.height() != 0 && y + line.height() > scaledSize.height())) {
-                bounds.setHeight(y);
-                endOfBoundsReached = true;
-                break;
-            }
-
-            y += 1.1 * line.height();
-        }
-        tl.draw(p, QPointF(px, py), QVector<QTextLayout::FormatRange>(), bounds);
-
-        if (endOfBoundsReached)
-            break;
     }
 
     p->setWorldTransform(oldTransform, false);
-    revertStyle(p, states);
-}
-
-void QSvgText::insertText(const QString &text, WhitespaceMode mode)
-{
-    bool isTSpan = (m_formats.count() == 2);
-    QString newText(text);
-    newText.replace(QLatin1Char('\t'), QLatin1Char(' '));
-    newText.replace(QLatin1Char('\n'), QLatin1Char(' '));
-
-    bool prependSpace = !m_appendSpace && !isTSpan && (mode == Default) && !m_paragraphs.back().isEmpty() && newText.startsWith(QLatin1Char(' '));
-    if (m_appendSpace || prependSpace)
-        m_paragraphs.back().append(QLatin1Char(' '));
-
-    bool appendSpaceNext = (!isTSpan && (mode == Default) && newText.endsWith(QLatin1Char(' ')));
-
-    if (mode == Default) {
-        newText = newText.simplified();
-        if (newText.isEmpty())
-            appendSpaceNext = false;
-    }
-
-    if (!m_formats.isEmpty()) {
-        QTextLayout::FormatRange range;
-        range.start = m_paragraphs.back().length();
-        range.length = newText.length();
-        range.format = m_formats.top();
-        if (m_appendSpace) {
-            Q_ASSERT(!m_formatRanges.back().isEmpty());
-            ++m_formatRanges.back().back().length;
-        } else if (prependSpace) {
-            --range.start;
-            ++range.length;
-        }
-        m_formatRanges.back().append(range);
-    }
-
-    m_appendSpace = appendSpaceNext;
-    m_paragraphs.back() += newText;
-}
-
-void QSvgText::insertFormat(const QTextCharFormat &format)
-{
-    QTextCharFormat mergedFormat = format;
-    if (!m_formats.isEmpty()) {
-        mergedFormat = m_formats.top();
-        mergedFormat.merge(format);
-    }
-    m_formats.push(mergedFormat);
-}
-
-void QSvgText::insertLineBreak()
-{
-    if (m_type == TEXTAREA) {
-        if (m_paragraphs.back().isEmpty())
-            insertText(QLatin1String(" "), Preserve);
-        m_appendSpace = false;
-        m_paragraphs.push_back(QString());
-        m_formatRanges.push_back(QList<QTextLayout::FormatRange>());
-    }
-}
-
-void QSvgText::popFormat()
-{
-    if (m_formats.count() > 1)
-        m_formats.pop();
-}
-
-qreal QSvgText::scale() const
-{
-    return m_scale;
-}
-
-void QSvgText::setScale(qreal scale)
-{
-    m_scale = scale;
-}
-
-const QTextCharFormat &QSvgText::topFormat() const
-{
-    return m_formats.top();
-}
-
-void QSvgText::setTextAlignment(const Qt::Alignment &alignment)
-{
-    m_textAlignment = alignment;
+    p->setOpacity(oldOpacity);
+    revertStyle(p, states);
+}
+
+void QSvgText::addText(const QString &text)
+{
+    m_tspans.append(new QSvgTspan(this, false));
+    m_tspans.back()->setWhitespaceMode(m_mode);
+    m_tspans.back()->addText(text);
 }
 
@@ -597 +630 @@
 {
     qreal sw = strokeWidth();
-    if (qFuzzyCompare(sw + 1, 1))
+    if (qFuzzyIsNull(sw))
         return m_poly.boundingRect();
     else {
@@ -609 +642 @@
 {
     qreal sw = strokeWidth();
-    if (qFuzzyCompare(sw + 1, 1))
+    if (qFuzzyIsNull(sw))
         return m_cachedBounds;
     else {
@@ -624 +657 @@
 {
     qreal sw = strokeWidth();
-    if (qFuzzyCompare(sw + 1, 1)) {
+    if (qFuzzyIsNull(sw)) {
         qreal minX = qMin(m_bounds.x1(), m_bounds.x2());
         qreal minY = qMin(m_bounds.y1(), m_bounds.y2());